Drilling centrifugal pump in solid control system, sand pump is used for the drilling fluids Desander , in addition to mud , mud cleaners and other equipment for the material, the transmission medium is circulating with the solid phase drilling fluids . Existing drilling sand pump shaft seal using a simple mechanical seals , often resulting in the string into the drilling fluids sand pump bearings ( sealed ), of which the drilling fluid contains large amounts of solid particles . Thus making drilling centrifugal pump bearings quickly damaged , causing many to abandon drilling drilling crew and desilter desander etc. , only shale shaker , a serious deterioration in the drilling conditions .
For drilling fluid seal problems Xi'an Brightway Energy Machinery Co., Ltd. developed a new type of sand pump seal, mechanical seal structure using the new theory, the structure of the active life than more than doubled .
Drilling pump in the drilling solids control system is the most important hydraulic devices. However, the existing drilling pump significantly larger , emphasis , and the pump piston and cylinder wear is very serious, is the main wearing parts of the pump. The reason is mainly for two reasons : First, the structural design of drilling pump is mainly imitation , not using modern design methods , resulting in a significantly larger drilling pump structure ; Second, the solids content of the drilling fluid ones, mainly due to serious friction liner wear - especially barite drilling fluid pump piston causes.
To do this , you should use good sealing effect , long life drilling sand pump new seal structure to extend the life of sand pump , better play drilling solids control equipment performance , improve drilling efficiency.
The solid control system also has some horizontal vacuum degasser equipped, its working principle is to use vacuum suction fluid, separated by the thin film after turbulent gas pumped by the vacuum pump. However, this horizontal vacuum degasser need to reprovision a pump spray unit, so that the degassed fluid pumped from the vacuum processing chamber.
Vacuum Degasser installation
(1) Drilling site requirements as long as no obvious tilt can be.
(2) inlet and outlet pipes, vacuum pumping line connections should be sealed and reliable.
(3) before the start of inlet and outlet pipes should end while immersed in the drilling fluid.
(4) Before the start of the first inlet hose on the vacuum pump and water pipe connected, stop for 3-5 minutes, and so filled with water after the pump is started again. At the same time, turn on the gas-water separator plugs, to the gas-water separator was filled with water until the water overflows from the overflow port stop and spin on the plugs. Start should check the motor rotation direction is correct.
(5) Vacuum control valve on the adjusting screw in place has been adjusted at the factory, do not casually adjusted.
Vacuum Degasser maintenance
(1) Vacuum degasser mud tank cover should be cleaned once a week, in order to avoid clogged gas channel.
(2) After use, the rotor should be washed and vacuum tank suction pipe, cut off the power, remove as the hole blocking plate to check parts for damage, and remove foreign objects inside the tank, rinse the tank wall and the rotor.
(3) After each using, the cleaning work should be carried out to ensure the re-use deaerator with good performance.
(4) Operating ambient temperature higher than 300C, the always see vacuum gauge, when the vacuum is less than 0.3 KPa, the water temperature should be maintained within the vacuum pump does not exceed 450C.
(5) For winter using, to promptly release the gas-water separator and pump the water to prevent cracking.
(6) Every month, available to the spindle bearing grease gun filled with sodium based grease filling volume 200ml.
Solid control system consists of a set of storage tanks and drilling fluid solids control drilling fluid used to remove harmful solid phase composed of a group of devices, storage tanks and solid control of drilling fluid circulation tank with reserve tank is divided into two parts. Ground drilling fluid circulating tank as part of a cycle, the tank surface mounted shaker, vacuum degasser, desander desilter, centrifuges and other equipment for the purification of fluids. Reserve tank is based on the need for preparation of drilling conditions different properties of the drilling fluid, or storage may be used for different drilling conditions of the drilling fluid.
Drilling fluid purification process in the system
1, First purification
Ie mud treatment at the shaker. Preparation of a good drilling fluid under the action of the pump into the bottom of the well, and carry drilling cuttings back to the surface through the wellhead elevated tube into the mud shaker, the drilling fluid screening out large debris.
2, Second purification
When drilling a gas dip when, through the role of the vacuum degasser will purge gas drilling fluid, thereby restoring the fluid density, fluid viscosity stable.
3, third purification
Two purified fluid supply pump enters through desander Desander, drilling fluid 40 - 60μm or more tiny harmful solid phase is separated desander li.
4, Fourth purification
Three purified by drilling into the supply pump desilter , drilling fluid 15 - 40μm above the tiny harmful solid phase desilter li be isolated.
5, Fifth purification
Four purified by centrifuge feed pump drilling fluid into the centrifuge, the centrifuge will be drilling in 5 - 15μm tiny particles separated.
The Liner shaker motor using two two separately driven eccentric shaft , in order to obtain a straight line shapes . Avoid the use of high-precision gear rotor forced the two excitation linking practices , so that the structure is greatly simplified.
In the ideal case ,such as the system of two identical motor characteristics , the fulcrum of the stiffness and damping are equal, nor phase exists at startup , two eccentric block synchronization reversal, can achieve linear vibration type . But in fact, because the two are not identical , and start the motor characteristics and other reasons , the two eccentric operation , it is not strictly maintain the relative position shown in Figure 2-9 , when the two eccentric centrifugal force can not be generated by Figure 2-9 superposition manner and offset to produce an unbalanced force , so that the whole screen box spring on the support movement and generate additional swing. It is due to this move and swing. Also the two eccentric automatically follow each other until they reach reverse synchronous rotation . This process is called self- synchronization process.
The shale shaker is a important equipment in the solid control equipment.Because two asynchronous motor for rotating the normal synchronization process, a sudden stop a willfully motor power.this motor sometimes can not stop turning , it is still a long term with negative 2-axis synchronous rotation . Then sieve pinch inevitable swing , is no longer a stable linear vibration . This is because a q mJ power from the motor shaft , which can be obtained during the vibration part of the energy to overcome the friction torque shaft , but its speed - fixed somewhat reduced, which necessarily and m: between emergence phase angle A. , The question arose AF force . So, still get to follow the surface of the long-term autocorrelation synchronous rotation . If the motor after a power failure during vibration energy can not be obtained in overcoming the friction torque shaft , the motor will slow down gradually . And stops rotating .
Brightway Design, installation location away from the mud shaker centroid distance, its main purpose is to make the sieve on the swing axis moment of inertia is small, that is to take reduced, Increasing j. Measures to improve the running stability.
Workover Rig is known as the Workover the different types of rigs include the offshore and onshore Rig that range from 150 HP to 1000 HP. Workover rigs have a surface depth that is equipped with diesel engines and transmissions and is available from 8000 ft to 30000 ft. Workover rigs contain a full line of drilling packages. There are skid mounted drilling rigs and the ones that are trailer mounted. Workover skid mounted drilling rigs incorporate the diesel electric AC/VFD or the DC/SCR drive rigs, mechanical drive rigs and the combination drive Rig that ranges from 1000 horse power to 6000 horse power; while the trailer mounted Rig ranges from 450 horse power to 1000 horse power.
Work over drilling rig mud system is also one kind of solids control system .The workover rig mud system is usually contaiind shale shaker, mud cleaner, decanter centrifuge, and mud tank. BW Solids Control is professional at this kind of mud system. BW Exported 5 Sets XJ550HP workover rig mud system to Indonesia, 4 Sets Workover rig mud system to Mexico. 2 Set to Thailand. BW Solids Control can supply all the equipments customized. Whatever your requirements. BW is able to design and manufacture the mud system as per your detailed requirement.
Benefits of BW Workover rig mud system
(1)Customized Design Equipment: Only for customers, we produced which you need!!!
(2)Simplicity and Useful: Simplicity is the essence of BW Solids Control Co.,Ltd.
(3)User Friendly: Very easy and safe to use all the solids control equipments.
(4)Environment Friendly: Be friendly to the environment is very important in drilling operation.
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Allen Lee
Brightway solids control Ltd
www.bwwell.com
www.bwsolidscontrol.com
bwsolidscontrol.en.alibaba.com
Skype:roylxh888
Good Attitude, Active Action, Bright future.
Centrifugal pump is a sub-class of dynamic axisymmetric work-absorbing turbomachinery. Centrifugal pumps are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow. The rotational energy typically comes from an engine or electric motor. The fluid enters the pump impeller along or near to the rotating axis and is accelerated by the impeller, flowing radially outward into a diffuser or volute chamber (casing), from where it exits.
Common uses include water, sewage, petroleum and petrochemical pumping. The reverse function of the centrifugal pumps is a water turbine converting potential energy of water pressure into mechanical rotational energy.
Following some pictures of our centrifugal pumps.
Allen Lee
Name：Xian Brightway Energy Equipment Co., Ltd
Phone：+86-29-89305763
Fax：+86-29-89305769
Address：No.118 Fuyu Road, Yuhua Industrial Zone, Yanta District, Xi’an City, China
E-mail：brightway@bwsolidscontrol.com
Good attitude Active action Bright future
